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 ###Instrução: Qual corpo participou em 1973?
 ###Tabelas: CREATE TABLE belting_and_debelting_statistics (belting_and_debelting_statistics_id AUTO_INCREMENT PRIMARY KEY, Feb 2010 VARCHAR, Mar 2010 VARCHAR, May 2010 INT, Jun 2010 INT, Jul 2010 INT, Aug 2010 INT, Sep 2010 INT, Oct 2010 INT, Nov 2010 INT, Dec 2010 INT, Jan 2011 INT, Feb 2011 INT, Mar 2011 INT, Apr 2011 INT, May 2011 INT, Jun 2011 INT, Jul 2011 INT, Aug 2011 INT, Sep 2011 INT, Oct 2011 INT, Nov 2011 INT, Dec 2011 INT, Jan 2012 INT, Feb 2012 INT, Mar 2012 INT, Apr 2012 INT, May 2012 INT, Jun 2012 INT, Jul 2012 INT, Aug 2012 INT, Sep 2012 INT, Oct 2012 INT, Nov 2012 INT, Dec 2012 INT, Jan 2013 INT, Feb 2013 INT, Mar 2013 INT, Apr 2013 INT, May 2013 INT, Jun 2013 INT, Jul 2013 INT, Aug 2013 INT, Sep 2013 INT, Oct 2013 INT) CREATE TABLE competition_timeline (competition_timeline_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, 1993– 94 VARCHAR, 1994– 95 VARCHAR, 1995– 96 VARCHAR, 1996– 97 VARCHAR, 1997– 98 VARCHAR, 1998– 99 VARCHAR, 1999– 2000 VARCHAR, 2000– 01 VARCHAR, 2001– 02 VARCHAR, 2002– 03 VARCHAR, 2003– 04 VARCHAR, 2005 VARCHAR, 2006 VARCHAR, 2007 VARCHAR, 2008 VARCHAR, 2009 VARCHAR, 2010 VARCHAR, 2011 VARCHAR, 2012 VARCHAR, 2013 VARCHAR, 2014 VARCHAR) CREATE TABLE 2010_regular_season_football_standings (2010_regular_season_football_standings_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Team VARCHAR, Division Record VARCHAR, Overall Record VARCHAR, Season Outcome VARCHAR) CREATE TABLE world_championships_and_world_cups (world_championships_and_world_cups_id AUTO_INCREMENT PRIMARY KEY, Sport VARCHAR, Body VARCHAR, Year VARCHAR, Event type VARCHAR, Location VARCHAR, Nations VARCHAR) CREATE TABLE universities_and_colleges_ranked_by_endowment (universities_and_colleges_ranked_by_endowment_id AUTO_INCREMENT PRIMARY KEY, State Rank INT, National Rank INT, Institution VARCHAR, Location VARCHAR, Public or Private VARCHAR, Endowment Funds VARCHAR, Percentage Change YOY VARCHAR)  
SELECT Body FROM world_championships_and_world_cups WHERE Year = 1973